我正在尝试编写一个程序来侦听它正在运行的机器上的端口 4444 并记录所有传入数据。
到目前为止，这是我的代码。
import java.io.*;
import java.net.*;
public class Foo {
URL url;
URLConnection connection;
InputStreamReader stream;
BufferedReader in;
String inputLine;
int test = 0;
public Foo()
{
Connect();
}
public static void main(String[] args)
{
Foo bridge = new Foo();
System.out.println("made the class");
for(;;)
{
System.out.println("in the loop");
try
{
System.out.println("making the try");
if((bridge.inputLine = bridge.in.readLine()) != null)
{
System.out.println("reading the line");
System.out.println(bridge.inputLine);
}
}
/*catch(NullPointerException n)
{
System.out.println(bridge.test);
bridge.test++;
}*/
catch(Exception e)
{
System.out.println("MAIN" + e);
}
}
}
public int Connect()
{
try
{
System.out.println("starting the constructor");
URL url = new URL("http", "192.168.0.104", 4444, "");
System.out.println("url ready");
URLConnection connection = url.openConnection();
System.out.println("connection ready");
//connection.setReadTimeout(5000);
connection.setDoInput(true);
InputStreamReader stream = new InputStreamReader(connection.getInputStream());
System.out.println("stream ready");
BufferedReader in = new BufferedReader(stream);
//BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
System.out.println("bufferReader ready");
return 0;
}
catch(Exception e)
{
System.out.println("CON" + e);
}
return 1;
}
}
当我运行它时，我得到它作为输出。
D:\temp_104\foo>java -cp . foo
starting the constructor
url ready
connection ready
每次它尝试创建输入流时都会挂起。我已经用超级终端对其进行了测试，服务器正在输出消息并且可以连接到端口 4444。我正在运行 java 1.5.0_15 并且无法更新。
谁能看到我做错了什么？